fanli_zhihong/YouHuiProject/YouHui/Home/View/CountDownView/LFWCountDown...

//
//  LFWCountDownView.m
//  YouHuiProject
//
//  Created by 小花 on 2018/1/17.
//  Copyright © 2018年 kuxuan. All rights reserved.
//

#import "LFWCountDownView.h"
#define TimerFont [UIFont systemFontOfSize:13]
@interface LFWCountDownView (){
    NSUInteger expiresTime;
    NSUInteger nowTime;
    NSDate *date1970;
    NSDateFormatter *dateFormatter;
    NSUInteger lastSeconds;
    NSInteger aDay;
}
@property (nonatomic, strong) dispatch_source_t timer;

/**小时*/
@property (nonatomic,strong) UIButton *hourBtn;
@property (nonatomic,strong) UIButton *hourBtn2;
/**分钟*/
@property (nonatomic,strong) UIButton *minuteBtn;
@property (nonatomic,strong) UIButton *minuteBtn2;
/**秒*/
@property (nonatomic,strong) UIButton *secondBtn;
@property (nonatomic,strong) UIButton *secondBtn2;

/**:*/
@property (nonatomic,strong) UIButton *textBtn;
@property (nonatomic,strong) UIButton *textBtn1;
@property (nonatomic,strong) UIButton *textBtn2;
@property (nonatomic,strong) UIButton *textBtn3;

@end

static LFWCountDownView *_countDownView = nil;
@implementation LFWCountDownView

+ (instancetype)shareInstace {
    static dispatch_once_t onceToken;
    dispatch_once(&onceToken, ^{
        _countDownView = [[LFWCountDownView alloc] initWithFrame:CGRectMake(0, 0, 200, 20)];
    });
    return _countDownView;
}

- (instancetype)initWithFrame:(CGRect)frame andEndTimer:(NSString *)endTimer
{
    NSDate *date = [NSDate date];
    NSTimeInterval timeinterval =[date timeIntervalSince1970];
    NSTimeInterval endTime = timeinterval + endTimer.longLongValue;
    
//    NSString *timeString2 = [NSString stringWithFormat:@"%.0f", a2];
    
    expiresTime = endTime;
    return [self initWithFrame:frame];
}

- (instancetype)initWithFrame:(CGRect)frame {
    self = [super initWithFrame:frame];
    if (self) {
        date1970 = [NSDate dateWithTimeIntervalSince1970:0];
        dateFormatter = [[NSDateFormatter alloc] init];
        [dateFormatter setDateFormat:@"HH mm ss"];
        aDay = 86399;
        expiresTime = 0;
        nowTime = 0;
        
       
        
        [self addSubview:self.textBtn];
        [self addSubview:self.hourBtn];
        [self addSubview:self.hourBtn2];
        [self addSubview:self.textBtn1];
        [self addSubview:self.minuteBtn];
        [self addSubview:self.minuteBtn2];
        [self addSubview:self.textBtn2];
        [self addSubview:self.secondBtn];
        [self addSubview:self.secondBtn2];
        [self addSubview:self.textBtn3];
        
    }
    return self;
}

- (void)countDown {
    // 从1970年到现在的时间（秒）
    NSDate* dat = [NSDate dateWithTimeIntervalSinceNow:0];
    NSTimeInterval second =[dat timeIntervalSince1970];
    NSString *starTimer = [NSString stringWithFormat:@"%.0f", second];
    
    nowTime = starTimer.longLongValue;
    
    __block NSUInteger timeout= expiresTime; //倒计时时间
    NSString *curStr = [self homeLimitTimeString];
    [self labelValueHandler:curStr];
    
    if (_timer) {
         dispatch_source_cancel(_timer);
    }
   
    dispatch_queue_t queue = dispatch_get_global_queue(DISPATCH_QUEUE_PRIORITY_DEFAULT, 0);
    _timer = dispatch_source_create(DISPATCH_SOURCE_TYPE_TIMER, 0, 0,queue);
    dispatch_source_set_timer(_timer,dispatch_walltime(NULL, 0),1*NSEC_PER_SEC, 0); //每秒执行
    dispatch_source_set_event_handler(_timer, ^{
        if(timeout<=starTimer.longLongValue){ //倒计时结束，关闭
            dispatch_source_cancel(_timer);
            dispatch_async(dispatch_get_main_queue(), ^{
                
            });
            if (self.delegate && [self.delegate respondsToSelector:@selector(countViewTimeOutAction)]) {
                [self.delegate countViewTimeOutAction];
            }
        }else{
            NSString *curStr1 = [self homeLimitTimeString];
            dispatch_async(dispatch_get_main_queue(), ^{
                [self labelValueHandler:curStr1];
            });
            
            timeout--;
        }
    });
    dispatch_resume(_timer);
}


- (void)setEndTimer:(NSString *)endTimer {
    
    NSDate *date = [NSDate date];
    NSTimeInterval timeinterval =[date timeIntervalSince1970];
    NSString *endTimeStr = [NSString stringWithFormat:@"%.0f",timeinterval];
    NSTimeInterval endTime = endTimeStr.longLongValue + endTimer.longLongValue/1000;
    
    expiresTime = endTime;   //到期的时间戳
    
//    NSDate* dat = [NSDate dateWithTimeIntervalSinceNow:0];
//    NSTimeInterval second =[dat timeIntervalSince1970];
//    NSString *starTimer = [NSString stringWithFormat:@"%.0f", second];
//    nowTime = starTimer.longLongValue;
    [self countDown];
}


-(NSString*)homeLimitTimeString{
    
    NSTimeInterval timeActualValue;
    if (expiresTime<nowTime) {
        return @"00 00 00";
    }
    NSTimeInterval diffTime  = expiresTime - nowTime;
    //    NSLog(@"%ld",(expiresTime - nowTime)/3600/24);   /// 这里可以设置天数
    timeActualValue = diffTime;
    nowTime++;
    
    NSDate *curDate = [date1970 dateByAddingTimeInterval:timeActualValue];
    NSTimeZone *zone =  [NSTimeZone timeZoneWithAbbreviation:@"GMT-0800"];
    NSInteger interval = [zone secondsFromGMTForDate: curDate];
    NSDate *localeDate = [curDate  dateByAddingTimeInterval: interval];
    NSString *destDateString = [dateFormatter stringFromDate:localeDate];
    
    return destDateString;
}
-(void)labelValueHandler:(NSString*)text{
    NSArray *titleArr = [text componentsSeparatedByString:@" "];
    NSString *hourStr = titleArr[0];
    NSString *minStr = titleArr[1];
    NSString *secondStr = titleArr[2];
    
    [self.hourBtn setTitle:[hourStr substringWithRange:NSMakeRange(0, 1)] forState:UIControlStateNormal];
    [self.hourBtn2 setTitle:[hourStr substringWithRange:NSMakeRange(1, 1)] forState:UIControlStateNormal];
    
    [self.minuteBtn setTitle:[minStr substringWithRange:NSMakeRange(0, 1)] forState:UIControlStateNormal];
    [self.minuteBtn2 setTitle:[minStr substringWithRange:NSMakeRange(1, 1)] forState:UIControlStateNormal];
    
    [self.secondBtn setTitle:[secondStr substringWithRange:NSMakeRange(0, 1)] forState:UIControlStateNormal];
    [self.secondBtn2 setTitle:[secondStr substringWithRange:NSMakeRange(1, 1)] forState:UIControlStateNormal];
}

#pragma mark =============== layzer ==================

- (UIButton *)textBtn
{
    if (_textBtn == nil) {
        _textBtn = [UIButton buttonWithType:UIButtonTypeCustom];
        _textBtn.frame = CGRectMake(0, 0, 50, self.frame.size.height);
        _textBtn.titleLabel.textAlignment = NSTextAlignmentCenter;
        [_textBtn setTitle:@"距更新" forState:UIControlStateNormal];
        _textBtn.titleLabel.font = [UIFont systemFontOfSize:12];
        [_textBtn setTitleColor:[UIColor YHColorWithHex:0x999999] forState:UIControlStateNormal];
    }
    return _textBtn;
}

- (UIButton *)hourBtn
{
    if (_hourBtn == nil) {
        _hourBtn = [UIButton buttonWithType:UIButtonTypeCustom];
        _hourBtn.frame = CGRectMake(CGRectGetMaxX(_textBtn.frame), 0, 12, self.frame.size.height);
        _hourBtn.backgroundColor = [UIColor YHColorWithHex:0x444444];
        _hourBtn.titleLabel.font = TimerFont;
        _hourBtn.layer.cornerRadius = 3;
    }
    return _hourBtn;
}
- (UIButton *)hourBtn2
{
    if (_hourBtn2 == nil) {
        _hourBtn2 = [UIButton buttonWithType:UIButtonTypeCustom];
        _hourBtn2.frame = CGRectMake(CGRectGetMaxX(_hourBtn.frame)+2, 0, 12, self.frame.size.height);
        _hourBtn2.backgroundColor = [UIColor YHColorWithHex:0x444444];
        _hourBtn2.titleLabel.font = TimerFont;
        _hourBtn2.layer.cornerRadius = 3;
    }
    return _hourBtn2;
}

- (UIButton *)textBtn1
{
    if (_textBtn1 == nil) {
        _textBtn1 = [UIButton buttonWithType:UIButtonTypeCustom];
        _textBtn1.frame = CGRectMake(CGRectGetMaxX(_hourBtn2.frame), 0, 20, _hourBtn.frame.size.height);
        _textBtn1.titleLabel.textAlignment = NSTextAlignmentCenter;
        [_textBtn1 setTitle:@"时" forState:UIControlStateNormal];
        _textBtn1.titleLabel.font = [UIFont systemFontOfSize:12];
        [_textBtn1 setTitleColor:[UIColor YHColorWithHex:0x999999] forState:UIControlStateNormal];
    }
    return _textBtn1;
}

- (UIButton *)minuteBtn
{
    if (_minuteBtn == nil) {
        _minuteBtn = [UIButton buttonWithType:UIButtonTypeCustom];
        _minuteBtn.frame = CGRectMake(CGRectGetMaxX(_textBtn1.frame),0 , 12, _hourBtn.frame.size.height);
        _minuteBtn.titleLabel.font = TimerFont;
        _minuteBtn.backgroundColor = [UIColor YHColorWithHex:0x444444];
        _minuteBtn.layer.cornerRadius = 3;
    }
    return _minuteBtn;
}

- (UIButton *)minuteBtn2
{
    if (_minuteBtn2 == nil) {
        _minuteBtn2 = [UIButton buttonWithType:UIButtonTypeCustom];
        _minuteBtn2.frame = CGRectMake(CGRectGetMaxX(_minuteBtn.frame)+2,0 , 12, _hourBtn.frame.size.height);
        _minuteBtn2.titleLabel.font = TimerFont;
        _minuteBtn2.backgroundColor = [UIColor YHColorWithHex:0x444444];
        _minuteBtn2.layer.cornerRadius = 3;
    }
    return _minuteBtn2;
}

- (UIButton *)textBtn2
{
    if (_textBtn2 == nil) {
        _textBtn2 = [UIButton buttonWithType:UIButtonTypeCustom];
        _textBtn2.frame = CGRectMake(CGRectGetMaxX(_minuteBtn2.frame), 0, 20, _hourBtn.frame.size.height);
        _textBtn2.titleLabel.textAlignment = NSTextAlignmentCenter;
        [_textBtn2 setTitle:@"分" forState:UIControlStateNormal];
        _textBtn2.titleLabel.font = [UIFont systemFontOfSize:12];
        [_textBtn2 setTitleColor:[UIColor YHColorWithHex:0x999999] forState:UIControlStateNormal];
    }
    return _textBtn2;
}
- (UIButton *)secondBtn
{
    if (_secondBtn == nil) {
        _secondBtn = [UIButton buttonWithType:UIButtonTypeCustom];
        _secondBtn.frame = CGRectMake(CGRectGetMaxX(_textBtn2.frame), 0, 12,_hourBtn.frame.size.height);
        _secondBtn.backgroundColor = [UIColor YHColorWithHex:0x444444];
        _secondBtn.titleLabel.font = TimerFont;
        _secondBtn.layer.cornerRadius = 3;
        
    }
    return _secondBtn;
}
- (UIButton *)secondBtn2
{
    if (_secondBtn2 == nil) {
        _secondBtn2 = [UIButton buttonWithType:UIButtonTypeCustom];
        _secondBtn2.frame = CGRectMake(CGRectGetMaxX(_secondBtn.frame)+2, 0, 12,_hourBtn.frame.size.height);
        _secondBtn2.backgroundColor = [UIColor YHColorWithHex:0x444444];
        _secondBtn2.titleLabel.font = TimerFont;
        _secondBtn2.layer.cornerRadius = 3;
        
    }
    return _secondBtn2;
}

- (UIButton *)textBtn3
{
    if (_textBtn3 == nil) {
        _textBtn3 = [UIButton buttonWithType:UIButtonTypeCustom];
        _textBtn3.frame = CGRectMake(CGRectGetMaxX(_secondBtn2.frame), 0, 20, _hourBtn.frame.size.height);
        _textBtn3.titleLabel.textAlignment = NSTextAlignmentCenter;
        [_textBtn3 setTitle:@"秒" forState:UIControlStateNormal];
        _textBtn3.titleLabel.font = [UIFont systemFontOfSize:12];
        [_textBtn3 setTitleColor:[UIColor YHColorWithHex:0x999999] forState:UIControlStateNormal];
    }
    return _textBtn3;
}

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}
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}
@end